60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#include "sprite.h"
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void Sprite::render() {
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mesh_instance->position.x = position.x;
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mesh_instance->position.y = position.y;
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mesh_instance->rotation.z = rotation;
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mesh_instance->scale.x = scale.x;
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mesh_instance->scale.y = scale.y;
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mesh_instance->render();
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}
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void Sprite::update_mesh() {
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Mesh *mesh = mesh_instance->mesh;
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mesh->clear();
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float w2 = width / 2.0;
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float h2 = height / 2.0;
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mesh->add_uv(region_x, region_y);
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mesh->add_vertex2(-w2, h2);
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mesh->add_uv(region_x + region_width, region_y + region_height);
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mesh->add_vertex2(w2, -h2);
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mesh->add_uv(region_x, region_y + region_height);
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mesh->add_vertex2(-w2, -h2);
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mesh->add_uv(region_x + region_width, region_y);
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mesh->add_vertex2(w2, h2);
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mesh->add_triangle(1, 0, 2);
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mesh->add_triangle(0, 1, 3);
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mesh->upload();
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}
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Sprite::Sprite() : Object2D() {
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mesh_instance = new MeshInstance();
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mesh_instance->mesh = new Mesh(2);
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width = 1;
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height = 1;
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region_x = 0;
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region_y = 0;
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region_width = 1;
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region_height = 1;
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}
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Sprite::~Sprite() {
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delete mesh_instance->mesh;
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delete mesh_instance;
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}
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